Yet, despite their culture-historical significance, relatively few of these structures are dated absolutely, and a chronological division of the material based on architectural features and size alone only holds limited promise [156].
Therefore, in the present work, we describe the morphological events that occur during Crithidia deanei cell cycle, in particular the chronological division of the symbiont, relative to the other trypanosomatid host structures, such as the basal body, the kinetoplast, the flagellum and the nucleus.
For plotting the age-specific strength of selection, we used chronological age rather than the number of divisions; in this approximation, the age at n divisions is a+ n* b).
Telomeres shorten with each cell division and with increasing chronological age and short telomeres have been associated with a range of age-related diseases.
In aggregate, these studies suggest that perhaps RLS and CLS are controlled by different CR-mediated factors: respiration and metabolite production play a central role in chronological longevity, while sirtuin activation and division asymmetry have a considerable impact upon replicative longevity.
On both geographic and chronological grounds, the languages fall into two divisions, usually known as Continental Celtic and Insular Celtic.
Thus, the Net Risk Test in principle encompasses all the risk-benefit tasks without taking into account the distinctions, the chronological order among the various tasks, nor the division of labor in the various risk-benefit tasks.
Two distinct types of aging have been described in yeast: replicative aging, which refers to the number of cell divisions a mother cell is capable of completing, and chronological aging, which is defined by the length of time a cell can survive in a non-dividing state.
The two drugs led to diverse and specific phenotypes that depended on TORC1 inhibition, including prolonged chronological lifespan, inhibition of global translation, inhibition of cell growth and division, and reprograming of global gene expression mimicking nitrogen starvation.
Once formed, DNA methylation patterns must be maintained during cell division to preserve cell identity, even though some changes are observed during chronological aging [ 18].
